Starting with a box I want to take away some parts of it, the one after
the other (using the difference of the box and the union of the parts,
at each step one part more). After each step I want to save the
resulting image. I suppose it can be done using an animation. But how
can I count the steps in the animation? 
Or: does "clock" get a numerical value if one knows that clock varies
from 0 to 1 and that the number of images in the animation should be ex.
11).
-- 
Herman Serras
Gent (Belgium)
http://cage.rug.ac.be/~hs/

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"Herman Serras" <Her### [at] pandorabe> wrote in message
news:3CC99F62.1CCC1EC4@pandora.be...
> Starting with a box I want to take away some parts of it, the one after
> the other (using the difference of the box and the union of the parts,
> at each step one part more). After each step I want to save the
> resulting image. I suppose it can be done using an animation. But how
> can I count the steps in the animation?
> Or: does "clock" get a numerical value if one knows that clock varies
> from 0 to 1 and that the number of images in the animation should be ex.
> 11).

Short:Yes

Not as Short: The clock, by default goes from 0 to 1, interpolated over the
number of frames (i.e. clock value = frame_number*1/#frames) . If you have
cyclic animation turned on you would basically add 1 to the number of frames
(clock =  frame_number*1/(#frames+1)).  You can also override the defaults
for clock but setting Initial_Clock and Final_Clock in the .ini, the clock
variable is then interpolated between these two numbers in the same fasion.
If you use 3.5, there is the "frame_number" variable that will return the
actual frame number in your scene rather than "clock"

Hope that answers your question

-tgq

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